<!DOCTYPE html>
<html>
<head> 
<meta charset="utf-8"> 
<title>文件上传</title> 
</head>
<body>

<form method="post" enctype="multipart/form-data" action="i/oneFileUpload">
  选择一个文件: <input type="file" name="file">
  <input type="submit">
</form>

</body>
</html>